VPN technology applications in privacy and home networking

Virtual Private Network (VPN) technology serves different purposes depending on whether it is used as a commercial service or as a built-in feature on modern Wi-Fi routers.

Commercial VPNs are frequently used by individuals to maintain privacy, encrypt internet connections, and bypass geographical restrictions. This is particularly noted in contexts such as online betting, where users may seek to access platforms unavailable in their specific location or improve connection stability by selecting faster servers.

In contrast, many mid-to-high-end routers from manufacturers like TP-Link, Asus, Netgear, and Linksys feature built-in VPN server functions. Unlike commercial services that route traffic through external servers for anonymity, router-based VPNs create a secure, encrypted channel back to the user's home network. This allows remote devices, such as smartphones or laptops on public Wi-Fi, to access local resources like NAS drives, smart home devices, and media servers as if they were physically connected to the home network. These routers typically support protocols such as OpenVPN and the faster, more efficient WireGuard.